MESON Chess Problem Database

Problem Display
PID: 86596 (q5Q1/1r6/2pP2Bp/2r2PkN/2p2pp1/4R1p1/3B2K1/7R w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Hlas l'udu, 1995

q5Q1/1r6/2pP2Bp/2r2PkN/2p2pp1/4R1p1/3B2K1/7R

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...fxe3
      • 2.Bxe3#
    • 1...f3+
      • 2.Rxf3#
  • Tries
    • 1.Bf7+?
      • 1...Kxf5
        • 2.Be6#
        • 2.Qg6#
      • 1...Qxg8!
    • 1.Bh7+?
      • 1...Rg7
        • 2.Qxg7#
      • 1...Qxg8!
    • 1.Be8+?
      • 1...Kxf5
        • 2.Qg6#
      • 1...Rg7!
    • 1.Re7?
      • threat
        • 2.Bxf4#
      • 1...Rxf5
        • 2.Be8#
      • 1...Qa2
        • 2.Bh7#
      • 1...Rb2!
    • 1.Re8?
      • threat
        • 2.Bxf4#
      • 1...Rxf5
        • 2.Bf7#
      • 1...Rb2
        • 2.Bh7#
      • 1...Qa2!
    • 1.Qd8+?
      • 1...Re7
        • 2.Qxe7#
      • 1...Qxd8!
  • Keys
    • 1.Re5!
      • threat
        • 2.Bxf4#
      • 1...Qa2
        • 2.Bf7#
      • 1...Rb2
        • 2.Be8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(c);OGATE,P_SPINP(c),XR(D)::B(B),XP(c)
    • P(c);CHECK,OGATEB::B(B)+R(D),XP(c)
  • Tries
    • Try
      • B(H);CHECK
      • Refutation
        • Q(j);XQ(I)
    • Try
      • B(H);CHECK
      • Vars
        • R(i);N_GUARD,P_SPINR(i)::QAR2(I),XR(i)
      • Refutation
        • Q(j);XQ(I)
    • Try
      • B(H);CHECK
      • Vars
        • K(f);P-FLIGHT,XP(E)::QAB1(I)
      • Refutation
        • R(i);P_SPINR(i)
    • Try
      • R(D);P_PINP(c)
      • Threat
        • B(B),XP(c)
      • Vars
        • R(e);SBLOCK,XP(E)::QAR(I)+B(H)
        • Q(j);N_GUARD,P_PINB(B)::QAR(I)+B(H)
      • Refutation
        • R(i);P_PINB(B)
    • Try
      • R(D);P_PINP(c)
      • Threat
        • B(B),XP(c)
      • Vars
        • R(e);SBLOCK,XP(E)::QAR(I)+B(H)
        • R(i);N_GUARD,P_PINB(B)::QAR(I)+B(H)
      • Refutation
        • Q(j);P_PINB(B)
    • Try
      • Q(I);CHECK
      • Vars
        • R(i);N_GUARD,P_SPINR(i)::QAB(I),XR(i)
      • Refutation
        • Q(j);XQ(I)
  • Actual
    • R(D);P_PINP(c)
    • Threat
      • B(B),XP(c)
    • Vars
      • Q(j);N_GUARD,P_PINB(B)::QAR(I)+B(H)
      • R(i);N_GUARD,P_PINB(B)::QAR(I)+B(H)
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